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P. J. GURNEB.

. GAR HEATER.

No. 367,711. Patented Aug. 2,. 1887. ly.

WITNESSES: jmYBNToR: j; 1%@ BY 1mm ATTORNEYS.

UNITED STATES APATENT OFFICE.

PALMER J. GURNEE, OF RONDOT, NEW YORK.

CAR-HEATER.

SPECIFICATION forming part of Letters Patent No. 367,711, dated August 2, 1887.

(No modelli To @ZZ whom, it may concern.-

Be it known that I, PALMER J. GURNEE, of Rendout, in the county of Ulster and State of New York, have invented a new and Improved Gardfleater, of which the following is afull, clear, and exact description.

My invention relates to an improvement in ear-heaters, and has for its object to provide a heater capable of sustaining great abuse, in which ample means will be provided to retain the fuel in the heater in the event of an accident to the car.

-A further obj-eet is to so construct the heater as that the bottom, sides, and greater portion of the top will at all times be substantially cool.

rlhe invention lconsists in the construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is mainly a central longitudinal vertical section through the heater; and Fig. 2 is a plan view thereof, partly iu section. Fig. 3 is a detail view of the outer and lower draftldoor, also shown in dotted lines in Fig. 1.

The heater A is preferably cylindrical in form and composed of an outer easing, A', and an inner easing, A2, the aforesaid outer casing being constructed of boiler-steel and the inner cylinder of boiler or east iron. The two casings are securely bolted together by two or more series of bolts, a, the said bolts being provided with washers a', intervening the aforesaid outer and inner casings, to provide an annular space, a2, from top to bottom of` the heater.

The annular space a?, intervening the casings A and A2, is packed with any suitable non-heat-conducting material, such as amorphous silica and clay. A head, B, and bottom C are provided the heater, the ilanges of which bottom and head are securely riveted or bolted to the outer casing, A'. Two openings arecut in the head B, one each side of the eenter-a circular opening, b, andan oval opening, b', beneath the circular opening b and in registry therewith. A coal-magazine, D, is secured to the sai d head, which magazine is adapted to extend downward within the heater at an inclination to a central position over the firepot d; and to the upper surface of the head B a lid, d', is hinged, so as to cover the circular opening b, the said lid being provided with a hinged hasp, di', havingV a hook, d, pivoted thereon, which hasp is adapted to engage a staple, d, whereby a secure fastening is provided 'by either causing the hook d to enter the said staple or securing the hasp in engage ment with the staple by a padlock or equivalent device. The oval opening b' in the head is provided with an upwardlyextendiug and integral collar, c, adapted to receive a pipe, e', which pipe may be connected with a drum or any desired or suitable device for radiating heat generated in the heater, the waste products of combustion being carried out from said radiating device outside the ear in any convenient or approved manner. Below the aforesaid oval opening b' an apertured plate, E, is secured to the under side ol`- the head, and a tubular conductor, E', is secured to the said plate and to the head in registry with the said oval opening.

The tubular conductor E', made to project vertically downward from the head B to a point above the iirepot, is provided with circumferential apertures F near the top and a series of similar apertures, F', near the bottom, which betteln is inclo'sed by an apcrtured plate, F2, similar to the aforesaid upper apertured plate, E. The purpose of this conductor E is to convey the heat up from the body el' the heater to the supply-pipe c', from whence it is con ducted to a drum or other radiating device, and the gases and smoke from said radiating device outside the car, as aforesaid; and the obj ect of the apertured plates is to prevent the escape of the burning coal should the heater be upset.

As a means of conveying the heated air upward into the tubular conductor E',one or more air-apertures, G, are made in the outer casing, A', into which may be passed a thimble, g, to extend through the filling al and abut against the outer face of the inner casing, A2. Upon the said thimble, which is securely attached to the said outer easing, a register, y', may be pivoted, if desired, or the said air-passage IOO e serali may be formed in any other approved manner. In every event, however, thc inner cas` ing at this point is not pierced,save by a series of apertures, g, as shown, whereby,while the air is permitted to freely enter, as indicated bythe arrows in Fig. 1, in event of accident the coals can not escape. The Iire-brick G lining the lire-chamber is cut away in alignment with the said vent.

The fire-pot d is supported above the grate, and vmay be supported in any suitable manner, as by an annular band, H, held in position by one ofthe series of bolts a uniting the cylinders, as shown in Fig. l.

Near the base of the heater upon one side a door, h, is hinged to the inner casing in front of the ash-pit, the said door being provided with a number of apertures, 7L', to prevent the egress of coal,yet give ample draft; and it may 2o be locked in similar manner to the hinged lid of the coal-magazine, above described. To the outer casing opposite the aforesaid'inner apcrtured door, 7L, a similar yet larger door, H', is hinged, which may be fastened in similar mannerto said inner door,which outer door is provided with registers 7L, as shown in dotted lines in Fig. l, in section in Fig. 2, and in detail in Fig. 3.

Above the ire-pot three spaced annular 3o plates, K, K, and K2, are respectively secured to theinner casing, the said plates being provided with openings through which the coalmagazine and hot-air conductor are made to pass,

- which plates not only serve to strengthen the heater, but also as an extra safeguard against spilling the coal should the heater become damaged, as should one plate become loosened or broken two guards still exist between it and the head, although the annular plates K, K',

4.o and K2 are i ntended simply to serve as strengthening plates and as auxiliary safeguards against the spilling of coals from the heater. They of themselves radiate more or less heat, and a certain amount of the products of combustion will necessarily iind theirway between the edges of the said plates and the magazine D and conductor E up into the last chamber formed by said plates. To utilize the radiant heat and escaping waste products as a heating 5o factor, the aperturesFare made in the conductor E. Air may be admitted to thechambers formed by the said plates through suitable draft-opeiiingsAas, for instance, similar to the inlet G; but preferably such inlets are omitted.

5 5 It will be seen that there is scarcely a possibility of my heater being so damaged as to spill the coals, in that its outer casing of cylindrical steel will sustain great Weight and abuse before yielding; and even should it yield the 6o auxiliary safeguards are somany that the fire has scarce a chance to escape, and the sides, bottom, and almost the entire top, being comparativelycool at all times, will not char or promote combustion with the most infiammable inatlrial should they come in contact therewit The heater is bolted to the door, when in operation, securely enough to sustain it in a vertical position under ordinary circumstances, but not strong enough to hold in engagement with the floor should an accident occur, as the heater will sustain the most weight when upon its side.

It will be observed that the heater is designed to act merely in the capacity of a heatgenerator and not a radiator, although heat is radiated from the top to some extent, the car being heated through the medium of a drum or coil of pipe having communication with the outside and also with the generator.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. The combination, with a cylindrical heater, of a series of spaced annular guardplates apertured to receive the fuel-magazine, substantially as shown and described.

2.' The combination, with a double cylindrical heater provided with an intervening packing of non-heat-conducting material, of a series of spaced annular guard-plates apertured to receive the 'fuel-magazine, and means for conducting the products of combustion from said heater, substantially as herein set forth.

3. The combination, with a double cylindrical heater provided with an intervening packing of non-heat-conducting material, of a se ries of spaced annular guard-plates secured to the inner cylinder and apertured to receive a fuel-magazine, means for introducing air through the casings, and means for conducting the products of combustion from the heater, substantially as herein shown and described.

4.-. The combination, with a cylindrical heater provided with annular spaced guardplates attachedthereto, of a fuel-magazine having a hinged top and passing through said plates, and a tubular heat-conductor, also passing through said plates, provided with an apertured bottom, substantially as shown and described, and for the purpose herein set forth.

5. The combination, with a double cylindrical heater provided with an intervening packing of non heat conducting material and spaced annular guard-plates secured to the inner cylinder, of a fuel-magazine penetrating said plates and having a hinged cover, a tubular heat-conductor, also passing through said plates, provided with an apcrtured bottom, and an airway penetrating said cylinder, substantially as shown and described.

6. The combination, with a cylindrical heater provided with annular spaced guard-plates attached thereto and a fuel-magazine penetrating said plates, provided with a closed top, of a tubular heat-conductor, also passing through said plates, provided with an apertured top and bottom, substantially as shown and described, and for the purpose herein set forth.

7 The combination, with a double cylindrical heater provided with an intervening paek ing of non-heatconducting material, a series of spaced annular guard-plates attached to the ICD IIO

. l .l l

y said plates, having a closed top, and an apertured tubularheat-conductor, also penetrating said plates, of an i ncased aperture in the outer casing to admit air, and registering apertures in the inner casing, substantially as shown and described, and for the purpose herein set forth.

9. The combination, with a cylindrical heater provided with a series of spaced annular guard-plates, a fuel-magazine penetrating said plates and having a closed hinged top, of a tubular heat-conductor, also penetrating said plates, provided with an apertu red top and bottom, apertures in the side below the bottom guard-plate, and apertures in the side at the top between the upper guard-plate and head of the heater, substantially as herein shown and described.

10. The combination, with a double cylindrical heater provided wtlf an intervening packing of non-heat-conducting material, a series of annular spaced guard-plates attached to the inner cylinder, a fuel-magazine penetrating said plates, having a hinged closed top, of a tubular heatconductor, also penetrating said plates, provided with an apertured bottom and top, apertures in the side below the lower guard-plate, and apertures in the side near the top between the upper guard-plate and the heater-head, together with means of introducing air in said heater, substantially as shown and described, and for the purpose herein set forth. y

1l. The combination, with a double cylindrical heater provided with an intervening packing of non-heatconducting material, of an incased air-passage extending through the outer cylinder and packing, registerin0r aperturesg2 in the inner cylinder adapted to introduce air over the fire, and an apertured basedoor, 71 hinged to the inner cylinder, together with an outer draft-door, H', hinged to the outer cylinder parallel with the inner door, adapted to supply air beneath`the tire, substantially as shown and described.

PALMER J. GURNEE. Witnesses:

GEORGE S. SLEIGHT, J oHN MADDEN. 

